diff --git a/configure b/configure
index 90da6a6..765cce8 100755
--- a/configure
+++ b/configure
@@ -6,6 +6,7 @@ version=0.3.1
 prefix=/usr/local
 required_version_python=3.8
 required_version_pyqt=5.0
+required_version_pyxdg=0.27
 
 
 
@@ -46,6 +47,10 @@ python3 -c 'import PyQt5' >/dev/null 2>&1 || { echo >&2 "PyQt for Python3 >= $re
 PYQTVERSION=$(python3 -c 'from PyQt5.QtCore import QT_VERSION_STR; print(QT_VERSION_STR)')
 if version_gt $required_version_pyqt $PYQTVERSION; then echo "PyQt must be version >= $required_version_pyqt but is $PYQTVERSION. Aborting."; exit 1; fi
 
+python3 -c 'import xdg' >/dev/null 2>&1 || { echo >&2 "PyXDG for Python3 >= $required_version_pyxdg is required but it's not installed. https://freedesktop.org/wiki/Software/pyxdg/ . Aborting."; exit 1; }
+PYXDGVERSION=$(python3 -c 'from xdg import __version__; print(__version__)')
+if version_gt $required_version_pyxdg $PYXDGVERSION; then echo "PyXDG must be version >= $required_version_pyxdg but is $PYXDGVERSION. Aborting."; exit 1; fi
+
 echo "generating makefile"
 printf "PREFIX=$prefix\nPROGRAM=$program\nVERSION=$version\n" >Makefile
 
diff --git a/engine/config.py b/engine/config.py
index f0add17..4187447 100644
--- a/engine/config.py
+++ b/engine/config.py
@@ -52,6 +52,6 @@ Agordejo does not re-invent the wheel but instead uses the New-Session-Manager d
 it with some tricks of its own, that always remain 100% compatible with the original sessions.
 """, #this is the dict-comma.
 
-    "dependencies" : "\n".join("* "+dep for dep in ("nsmd: New Session Manager", "grep")),
+    "dependencies" : "\n".join("* "+dep for dep in ("nsmd: New Session Manager", "pyxdg: python-xdg")),
 
 }